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CVE-2023-37896

7.5 · HIGH

Nuclei is a vulnerability scanner.

Published Aug 4, 2023CWE-22EPSS 1.05%

Overview

CVE-2023-37896 is a high-severity vulnerability. It was published on August 4, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Nuclei is a vulnerability scanner. Prior to version 2.9.9, a security issue in the Nuclei project affected users utilizing Nuclei as Go code (SDK) running custom templates. This issue did not affect CLI users. The problem was related to sanitization issues with payload loading in sandbox mode. There was a potential risk with payloads loading in sandbox mode. The issue occurred due to relative paths not being converted to absolute paths before doing the check for `sandbox` flag allowing arbitrary files to be read on the filesystem in certain cases when using Nuclei from `Go` SDK implementation.

This issue has been fixed in version 2.9.9. The maintainers have also enabled sandbox by default for filesystem loading. This can be optionally disabled if required. The `-sandbox` option has been deprecated and is now divided into two new options: `-lfa` (allow local file access) which is enabled by default and `-lna` (restrict local network access) which can be enabled by users optionally. Th

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/projectdiscovery/nuclei/pull/3927GitHubgithub.com/projectdiscovery/nuclei/releases/tag/v2.9.9GitHubgithub.com/projectdiscovery/nuclei/security/advisories/GHSA-2xx4-jj5v-6mffGitHubgithub.com/projectdiscovery/nuclei/pull/3927GitHubgithub.com/projectdiscovery/nuclei/releases/tag/v2.9.9GitHubgithub.com/projectdiscovery/nuclei/security/advisories/GHSA-2xx4-jj5v-6mff

How CyberStrike helps

Frequently asked questions

What is CVE-2023-37896?

CVE-2023-37896 is a high-severity vulnerability. It was published on August 4, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-37896?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-37896?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-37896?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-37896 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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